|
|
Author
|
Topic: poll: how many subs and what power do you usally use in your cinemas ?
|
|
|
David Baum
Film Handler
Posts: 90
From: Brussels, Belgium
Registered: Aug 2000
|
posted 06-24-2002 04:19 PM
Joshhi that's very nice !! you don't seem to have headroom problems.
| IP: Logged
|
|
|
Steve Guttag
We forgot the crackers Gromit!!!
![](http://www.film-tech.com/ubbmembers/268e.gif)
Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
|
posted 06-24-2002 05:00 PM
How many? The correct amount with the proper amount of power. One needs to be able to get up to 113dB in the middle of the auditorium (within the passband of the subwoofer). Thus, I have used anywhere from a single 18" up to eight 18" subs. Seat count isn't so much the issue as volume of air one needs to move. If the room is big, you need to move alot of air. As to the high-pass, yes I high pass my subs based on what they can play. Also, I'll high-pass a sub system to keep those frequencies from passing through a wall too much. I think you are asking for rule-of-thumb questions that there are no rule-of-thumb answers. I will say that the vast majority of theatres I've seen often under-sub the the theatre. But, then again, they even more often fail on making good walls so it is probably just as well. Steve ------------------ "Old projectionists never die, they just changeover!"
| IP: Logged
|
|
|
|
|
|
All times are Central (GMT -6:00)
|
|
Powered by Infopop Corporation
UBB.classicTM
6.3.1.2
The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion
and agrees to release the authors from any and all liability.
|